I put the laundry on this morning, came into the kitchen and got a bread mix going, made some toast while that was mixing. The dishwasher was just finishing. Having to wait for one machine to serially finish doing each job not quite as well as a dedicated machine, before doing the next job, doesn't sound ideal. Plus when the dishwasher breaks I can still have toast.
The robot can do the dishes and the laundry while you aren't even there. No need for that to happen during breakfast! It can start making breakfast before you even wake up, if you want.